How To Fix CI508 - You cannot use a negative component quantity for item category &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CI - Plant maintenance task list messages

• Message number: 508

• Message text: You cannot use a negative component quantity for item category &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CI508 - You cannot use a negative component quantity for item category &1 ?

  The SAP error message CI508 indicates that there is an attempt to use a negative component quantity for a specific item category in a bill of materials (BOM) or production order. This error typically arises in scenarios where the system expects a positive quantity for components, but a negative value has been entered.
  Cause:
  
  Negative Quantity Entry: The most common cause is that a user has mistakenly entered a negative quantity for a component in a BOM or production order.
  Incorrect Item Category: The item category being used may not support negative quantities. Certain item categories are designed to only accept positive quantities.
  Configuration Issues: There may be configuration settings in the material master or BOM that restrict the use of negative quantities for specific item categories.
  
  Solution:
  
  Check Component Quantity: Review the BOM or production order and ensure that all component quantities are entered as positive values. If a negative quantity was entered by mistake, correct it to a positive value.
  Review Item Category: Verify the item category being used. If the item category does not allow negative quantities, consider using a different item category that supports the required functionality.
  Configuration Review: If the issue persists, check the configuration settings in the material master or BOM settings. Ensure that the item category is set up correctly to handle the required quantities.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the item category and its allowed configurations.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CS01 (Create BOM), CS02 (Change BOM), or CO01 (Create Production Order) to access and modify the relevant data.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  User Authorization: Ensure that the user has the necessary authorizations to make changes to BOMs or production orders, as lack of permissions can sometimes lead to unexpected behavior.
  
  If the problem continues after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who can provide more tailored assistance based on your specific SAP environment and configuration.